FKIE_CVE-2026-45248
Vulnerability from fkie_nvd - Published: 2026-05-14 22:16 - Updated: 2026-10-26 14:10
Severity
Summary
Hedera Guardian through 3.5.1 contains an authentication bypass vulnerability in the GET /api/v1/demo/registered-users endpoint that allows unauthenticated attackers to retrieve sensitive user information. Attackers can access the endpoint without providing authentication credentials to obtain usernames, Hedera DIDs, parent registry DIDs, system roles, and policy role assignments for all registered users in the system.
References
| URL | Tags | ||
|---|---|---|---|
| disclosure@vulncheck.com | https://github.com/hashgraph/guardian/pull/6076 | Issue Tracking, Patch | |
| disclosure@vulncheck.com | https://www.vulncheck.com/advisories/hedera-guardian-authentication-bypass-information-disclosure | Third Party Advisory |
{
"affected": [
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"packageURL": "pkg:github/hashgraph/guardian",
"product": "guardian",
"repo": "https://github.com/hashgraph/guardian",
"vendor": "hashgraph",
"versions": [
{
"lessThanOrEqual": "3.5.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
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],
"source": "disclosure@vulncheck.com"
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"configurations": [
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"cveTags": [],
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},
{
"lang": "es",
"value": "Hedera Guardian hasta la versi\u00f3n 3.5.1 contiene una vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n en el endpoint GET /api/v1/demo/registered-users que permite a atacantes no autenticados recuperar informaci\u00f3n sensible de usuarios. Los atacantes pueden acceder al endpoint sin proporcionar credenciales de autenticaci\u00f3n para obtener nombres de usuario, DIDs de Hedera, DIDs de registro padre, roles del sistema y asignaciones de roles de pol\u00edtica para todos los usuarios registrados en el sistema."
}
],
"id": "CVE-2026-45248",
"lastModified": "2026-10-26T14:10:00.130",
"metrics": {
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"integrityImpact": "NONE",
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"scope": "UNCHANGED",
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"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
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"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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"role": "CISA Coordinator",
"timestamp": "2026-05-16T01:07:26.744122Z",
"version": "2.0.3"
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"published": "2026-05-14T22:16:45.000",
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}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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